Wiring techniques for cores



March 31, 1964 J. c. HATHAWAY 3,126,622

WIRING TECHNIQUES FOR CORES Filed April 16, 1962 26 INVENTOR.

JAMES C. HATHAWAY BY ATTORNEY United States Patent 3,126,622 WIRINGTECHNIQUES FOR CORES James C. Hathaway, Corona del Mar, Calif assignorto Collins Radio Company, Cedar Rapids, Iowa, a corporation of IowaFiled Apr. 16, 1962, Ser. No. 187,546 1 Claim. (Cl. 29--241) Thisinvention relates in general to wiring jigs, and in particular to a jigfor facilitating the wiring of a plurality of magnetic cores, such asused in magnetic core logic circuits. As is well known to those skilledin the art, magnetic cores may be used as logic elements for digitalapplications, such as the control or arithmetic sections of computers.Magnetic core circuits include many cores mounted in matrices to providecomplex logic functions.

It is an object of the present invention to provide a jig for wiringsuch cores in a simple manner which eliminates the tediousness ofpicking up each individual core and inserting the wire and aligning thecores.

A feature of this invention is found in the provision for a jig withindividual arms for holding magnetic cores and in which the arms may beindividually adjusted so as to selectively position the cores in amanner to facilitate winding the cores.

Further advantages, features, and objects of the invention will becomeapparent from the following description and claim when read in view ofthe drawings, in which:

FIGURE 1 is a perspective view of the winding jig of this invention;and,

FIGURE 2 is a plan view showing a difierent arrangement of the arms ofthe jig than shown in FIGURE 1.

With reference to FIGURE 1 a main body member has an upwardly-extendingportion 11 which is suitably secured to the body portion by holdingscrews 12. Body portion 10 is formed with a plurality of spaced slots 13through which arms 14 extends. The adjusting ends 16 of arms 14 areprovided with notches 17 to move the arms relative to the body portionwithin the slots 13.

A second raised portion 18 is formed at the opposite side of the bodyportion and has guide slots 19 into which cores 21 formed with centralopenings 22 may be received. The arms 14 have core-holding portions 23adjacent their ends which are adapted for receiving and clamping thereinthe magnetic cores 21. Portions 23 comprise spring clamps into which thecores may be inserted.

Thus the structure of FIGURE 1 comprises a jig for holding a pluralityof magnetic cores, and by selectively moving the arms 14 relative to theholding jig different cores may be aligned with each other to facilitatesimple and rapid Winding. For example, the arrangement shown in FIGURE 1comprises a winding wherein alternate cores are commonly Wound so that aneedle 24 with wire 26 attached through a suitable eye can be threadedthrough alternate cores as desired.

Likewise, the second group of cores which are further removed from theedge 27 of the body member than the other cores are aligned and may bewound with the needle 24.

It is seen that any pattern desired may be established by moving thearms 14 transversely of the body member in the slots 19 and 13, andwinding may be accomplished rapidly either manually or by machine.

It is seen that this invention provides a jig for winding cores, andalthough it has been described with respect to a preferred embodimentthereof, it is not to be so limited, as changes and modifications may bemade therein which are within the full intended scope of the inventionas defined by the appended claim.

I claim:

A winding jig comprising a body portion formed with a pair ofupwardly-extending portions, a plurality of core supporting armsextending through the first of said upwardly-extending portions andslidably movable relative thereto, slots formed through the firstupwardly extending portion and receiving the arms therethrough for suchslidable movement, a plurality of grooves formed in the otherupwardly-extending portion, core engaging means at the end of each armadapted to receive cores therein slidably engaging its associated groovewhereby the cores may be moved relative to the grooves formed in thesecond upwardly-extending portion.

References Cited in the file of this patent UNITED STATES PATENTS2,773,303 Tirone Dec. 11, 1956 2,961,745 Smith Nov. 29, 1960 2,978,800Blain Apr. 11, 1961 2,985,948 Peters May 30, 1961

